Hello All, Long time lurker, first time poster. I'm hoping another geo professional or informed homeowner will be able to give me some insight on their experience/success/problems/performance concerning using a directional horizontal boring rig to install the HX field. My problem is three-fold; 1) The geo drillers prices have shot up in my area, 2) None have been very reliable, 3) The rigs and crews leave a big mess for us to clean up after. I am unwilling to spend two years as an apprentice driller (not that anyone would hire a worn-out HVAC business owner) just to become licensed to drill a vertical hole and thought about using a directional horizontal rig. The soils here are conducive to using a directional drill and I will be able to schedule the work better and hopefully control costs and cleanup. Does anyone have experience using this type of technology for geo and did it work satisfactorily? I'm leaning toward the DitchWitch JT1220 if it seems that it will work. The company is willing to send a machine to a job and demo it but I'd like to get some feedback before I waste time and money. Additionally I realize I will need to grout the hole and plan on pulling the tremie pipe along with the HX piping to make sure there are no voids. I have never dug a horizontal field because the soil here is mostly black-land clay and during droughts the ground has dried out to a depth of >6ft. All my installs so far have been good using vertical holes and I don't want to get a bad rep if we have another serious drought and I lose heat conductivity. I'd plan on the directional boring depth to be an average of 10-15'.